#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<vector>
#include<string>

using namespace std;

class Solution {
public:
    int search(vector<int>& nums, int target)
    {
        int left = 0, right = nums.size() - 1;
        while (left <= right)
        {
            int mid = (right - left) / 2 + left;
            int num = nums[mid];
            if (num == target)
            {
                return mid;
            }
            else if (num > target)
            {
                right = mid - 1;
            }
            else
            {
                left = mid + 1;
            }
        }
        return -1;
    }

    int firstUniqChar(string s)
    {
        string::iterator it = s.begin();
        int a[26] = { 0 };

        while (it != s.end())
        {
            a[*it - 'a']++;
            it++;
        }

        for (int i = 0; i < s.size(); i++)
        {
            if (a[s[i] - 'a'] == 1)
            {
                return i;
            }
        }

        return -1;
    }
};

int main()
{
    Solution S;
    
    return 0;
}